/Engine/Source/Runtime/Online/HTTP/Public/GenericPlatform/GenericPlatformHttp.h
Check if getting proxy information from the current operating system is supported Useful for "Network Settings" type pages. GetProxyAddress may return an empty or populated string but that does not imply the operating system does or does not support proxies (or that it has been implemented here)
true if we are able to get proxy information from the current operating system, false if not
static bool IsOperatingSystemProxyInformationSupported()